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TI-2018-15664 Aliases CVE-2018-1000002GHSA-47fr-2fhh-8hrg

Improper input validation bugs in DNSSEC validators components in Knot Resolver (prior…

Priority LOW 20CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
None · None · Low
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

Improper input validation bugs in DNSSEC validators components in Knot Resolver (prior version 1.5.2) allow attacker in man-in-the-middle position to deny existence of some data in DNS via packet replay.

Why it matters now

EPSS 0.01081 65th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:nic:knot_resolver:*:*:*:*:*:*:*:*before 1.5.2VulnerableCZ.NIC
  • cpe:2.3:a:nic:knot_resolver:*:*:*:*:*:*:*:* Versions before 1.5.2 Vulnerable ·CZ.NIC

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-1000002
  2. 2026-10-03 Alias added: GHSA-47fr-2fhh-8hrg

References

Advisory 1

  • TI-2023-27571 Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related… CVSS 3.1HIGH 7.5
  • TI-2020-10072 Knot Resolver before 5.1.1 allows traffic amplification via a crafted DNS answer from an… CVSS 3.1HIGH 7.5
  • TI-2022-19055 Knot Resolver before 5.5.3 allows remote attackers to cause a denial of service (CPU… CVSS 3.1HIGH 7.5
  • TI-2023-24930 Knot Resolver before 5.7.0 performs many TCP reconnections upon receiving certain nonsensical responses from servers. CVSS 3.1HIGH 7.5
  • TI-2023-11416 Knot Resolver before 5.6.0 enables attackers to consume its resources, launching… CVSS 3.1HIGH 7.5
  • TI-2019-13943 knot-resolver before version 4.3.0 is vulnerable to denial of service through high CPU… CVSS 3.1HIGH 7.5
See all 13 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences